Improvement in axle-lubricators



No.129,760. Paten.tedluly23,1872.

PATENT OFFICE.

EDWIN w. sMrrH, or WATERBURY, connncrron'rs IMPROVEMENT m'AXLE-LUBRIC'ATORS.

Specification forming part of Letters Patent No. 129,761 dated July 23,1872.

To all whom it may concern: a

Be it known that I, EDWIN W. SMITH, of Waterbury, in the county of NewHaven and State of Connecticut, have invented a new and valuableImprovement in Lubricator for Axles; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingmaking a part of this specification, and to the letters and figures ofreference marked thereon.

Figure 1 of the drawing is a representation of a sectional view of myinvention. Fig. 2 is a top view when closed. Fig. 3 is a top view whenopen. Fig. 4 is a sectional view of cover.

This invention has relation to lubricators; and consists in the meanshereinafter de scribed for'conducting the oil to the shaft or bearing,and for preventing leakage.

Referring to the drawing, A represents a cylindrical cup, having aninwardly-proj ecting rim, b, and furnished with a pivoted cover, I). Theadjacent surfaces of the rim and cover are provided with concentricgrooves a, each having its inner wall inclined and its outer wallvertical, so that any oil which may get between the rim andthe coverwill tend to flow toward the center opening. The cup is provided with-aneck, B, having a thread cut on its outside, so that it may be securedto a hub or journal-box. Through the center of said neck is an aperturefor the passage of oil. D designates a spiral wire or spring arrangedWithin the cup at its outer end, and attached to a twisted wire, d,passing through the neck to the surface to be lubricated.

The spiral and twisted wires are designed to feed the oil to thebearing, whether the cup be in an upright or other position, and whetherthe bearing be revolving or reciprocating; The twisted wire supports thespiral wire, and by reason of its form provides channels, along whichthe oil may freely flow. Sometimes a strand of yarn is twisted in thewires to assist the capillary movement.

What I claim as new is The lubricator herein described, consisting ofthe oil-cup A, spiral spring 1), twisted shank d, inwardly-projectingrim 1), and piv-' oted cover I), having concentric grooves, all

arranged in the manner as set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

EDWIN W. SMITH.

Witnesses:

R. B. GwILLnn, HENRY T. SPERRY.

